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Extract from the Register of European Patents

EP About this file: EP4364725

EP4364725 - SYSTEMS AND METHODS RELATING TO MEDICAL APPLICATIONS OF INVERSE THERMOSENSITIVE POLYMER FOAM FORMULATIONS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.02.2026
Database last updated on 21.03.2026
FormerThe patent has been granted
Status updated on  28.02.2025
FormerGrant of patent is intended
Status updated on  08.01.2025
FormerRequest for examination was made
Status updated on  15.11.2024
FormerThe application has been published
Status updated on  05.04.2024
Most recent event   Tooltip13.03.2026Lapse of the patent in a contracting state
New state(s): RO		published on 15.04.2026 [2026/16]
Applicant(s)For all designated states
Critical Innovations, LLC
4228 Marine Ave
Lawndale, CA 90260 / US
[2024/19]
Inventor(s)01 / DONALDSON, Ross I.
Lawndale, CA 90260 / US
02 / ARMSTRONG, Jonathan
Lawndale, CA 90260 / US
03 / BUCHANAN, Oliver
Lawndale, CA 90260 / US
04 / CAMBRIDGE, John
Lawndale, CA 90260 / US
05 / FISHER, Timothy
Lawndale, CA 90260 / US
06 / CRISTERNA, Nely
Lawndale, CA 90260 / US
 [2024/19]
Representative(s)HGF
HGF Limited
4th Floor, 1 City Square
Leeds LS1 2ES / GB
[N/P]
Former [2024/19]HGF
HGF Limited
1 City Walk
Leeds LS11 9DX / GB
Application number, filing date23207248.801.11.2023
[2024/19]
Priority number, dateUS202263423308P07.11.2022         Original published format: US 202263423308 P
[2024/19]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4364725
Date:08.05.2024
Language:EN
[2024/19]
Type: B1 Patent specification 
No.:EP4364725
Date:02.04.2025
Language:EN
[2025/14]
Search report(s)(Supplementary) European search report - dispatched on:EP08.01.2024
ClassificationIPC:A61K9/12, A61L15/00, A61L15/26, A61L15/42, B65D83/00, A61K47/10
[2024/19]
CPC:
A61K9/0014 (EP); C08J9/146 (US); A61K47/10 (EP);
A61K9/12 (EP); A61K9/124 (EP); A61L26/0019 (EP,US);
A61L26/0076 (US); A61L26/0085 (EP,US); B65D83/285 (EP);
B65D83/382 (EP); B65D83/42 (EP); B65D83/46 (EP);
B65D83/64 (EP); C08J2371/02 (US) (-)
C-Set:
A61L26/0019, C08L71/02 (EP)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/51]
Former [2024/19]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  ME,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:SYSTEME UND VERFAHREN IM ZUSAMMENHANG MIT MEDIZINISCHEN ANWENDUNGEN VON INVERSEN WÄRMEEMPFINDLICHEN POLYMERSCHAUMSTOFFFORMULIERUNGEN[2024/19]
English:SYSTEMS AND METHODS RELATING TO MEDICAL APPLICATIONS OF INVERSE THERMOSENSITIVE POLYMER FOAM FORMULATIONS[2024/19]
French:SYSTÈMES ET PROCÉDÉS RELATIFS À DES APPLICATIONS MÉDICALES DE FORMULATIONS DE MOUSSE POLYMÈRE THERMOSENSIBLE INVERSE[2024/19]
Examination procedure08.11.2024Amendment by applicant (claims and/or description)
08.11.2024Examination requested  [2024/51]
08.11.2024Date on which the examining division has become responsible
09.01.2025Communication of intention to grant the patent
20.02.2025Fee for grant paid
20.02.2025Fee for publishing/printing paid
20.02.2025Receipt of the translation of the claim(s)
Divisional application(s)EP25166315.9  / EP4570240
Opposition(s)05.01.2026No opposition filed within time limit [2026/11]
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT02.04.2025
BG02.04.2025
CZ02.04.2025
DK02.04.2025
EE02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
IT02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
RO02.04.2025
SK02.04.2025
SM02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
[2026/16]
Former [2026/11]AT02.04.2025
BG02.04.2025
CZ02.04.2025
DK02.04.2025
EE02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
IT02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
SK02.04.2025
SM02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
Former [2025/49]AT02.04.2025
BG02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
Former [2025/48]AT02.04.2025
BG02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
NL02.04.2025
PL02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
PT04.08.2025
Former [2025/46]ES02.04.2025
FI02.04.2025
NL02.04.2025
PT04.08.2025
Former [2025/43]NL02.04.2025
Documents cited:Search[X] US2012087872  (TAMARKIN DOV et al.)
 [X] EP3539571  (CRITICAL INNOVATIONS LLC et al.)
 [X] WO2009090558  (FOAMIX LTD et al.)
 [X] GB1561423  (MUNDIPHARMA AG et al.)
by applicantUS11207060
 US4474752
 US6316011
 US2011294760
 US2005008610
 US2005147585
 US2011087207
 US2008181952
 US2007191768
 US8062282
 US2008208163
 US2008031847
 US2013158589
 US8871248
 US9283278
 US9603966
 US9884136
 US2017216480
 US2018169012
 US202217876187
 US9616203
 US10046147
 US10814119
 US2021106344
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.